Binary to Hex Converter - Convert Binary to Hexadecimal Online

Binary to Hex Converter

The Binary to Hex Converter instantly converts binary numbers (base-2) into their hexadecimal (base-16) equivalents. This free online tool is ideal for programmers, embedded systems engineers, computer science students, and digital electronics professionals.

Hexadecimal is the most commonly used compact representation of binary data in programming, memory addressing, color codes, and hardware registers. Each hex digit represents exactly four binary bits (a nibble).

1010          → A
110111101010  → 37A
11111111      → FF
10000000      → 80

What is a Binary Number?

Binary is the base-2 numeral system using only 0 and 1. It is the native language of computers and all digital circuits.

What is a Hexadecimal Number?

Hexadecimal (hex) is the base-16 numeral system using digits 0–9 and letters A–F. It provides a human-readable, compact representation of binary data and is widely used in programming, memory addresses, color values, and low-level hardware interfaces.

How to Convert Binary to Hexadecimal

1. Group the binary digits into sets of four (nibbles), starting from the right.
2. Pad with leading zeros on the left if the number of bits is not a multiple of 4.
3. Replace each 4-bit group with its corresponding hex digit.

Binary to Hex Formula

Group binary digits in sets of 4 from right to left.
Map each nibble to hex:

0000 → 0    0001 → 1    0010 → 2    0011 → 3
0100 → 4    0101 → 5    0110 → 6    0111 → 7
1000 → 8    1001 → 9    1010 → A    1011 → B
1100 → C    1101 → D    1110 → E    1111 → F

Example

Binary = 110111101010

Group: 0011 | 0111 | 1010

0011 → 3
0111 → 7
1010 → A

Hexadecimal = 37A

Binary to Hex Conversion Table

Applications of Binary to Hex Conversion

• Memory Address Representation
• Color Code (RGB Hex) Specification
• Machine Code and Assembly Language
• Network Protocol Analysis
• Cryptography and Hashing
• Embedded Systems and Firmware Development
• Debugging and Reverse Engineering
• Computer Science Education

Programming Examples

Python

hex(int('110111101010', 2))

Output

'0x37a'

JavaScript

parseInt('110111101010', 2).toString(16).toUpperCase()

Output

'37A'

C

printf("%X", strtol("110111101010", NULL, 2));

Frequently Asked Questions